Assuming we tender offers to all of our RFAs and the waiver-eligibles come up, and we open the season with MNM in the lineup, we have 26 players (at least one on IR).
Centres: Kadri, Bozak, Matthews, Holland, S. Carrick
Left Wing: JvR, Leivo, Michalek, Greening, Laich
Right Wing: Komarov, Nylander, Marner, Lupul (+?), Horton (+)
Left Def: Rielly, Gardiner, Hunwick, Marincin, Percy
Right Def: Zaitsev, C. Carrick, Corrado, Robidas (+)
Goalie: Andersen, Bernier
I'd prefer to free up some space for Soshnikov, Hyman, Brown to make the lineup. We can safely part ways with Sam Carrick or keep him and dangle him on the waiver wire.
Barring a trade to move an incumbent, top-RHD is really the only part of the lineup I'd part with assets to fill now.
EDIT: forgot Horton